php 正则替换函数 ereg_replace
下面的实例是利用php 正则替换函数 ereg_replace来把指定的字符替换成我想需要的字符实例,代码如下:
- $num = 'www.phpfensi.com';
 - $string = "this string has four words. <br>";
 - $string = ereg_replace ('four', $num, $string);
 - echo $string;
 - $num = '49';
 - $string = "this string has four words";
 - $string = ereg_replace ('four', $num, $string);
 - echo $string;
 - $string ="测试用文字";
 - echo "**********$string**********<p>";
 - $string = ereg_replace ("^", "<br>", $string);
 - $string = ereg_replace ("$", "<br>", $string);
 - echo "==========$string==========";
 - //开源代码phpfensi.com